xbyak: update (#2797)

* xbyak: update

* xbyak: shorten description

packages/x/xbyak/xmake.lua

@@ -1,12 +1,12 @@
 package("xbyak")
-
     set_kind("library", {headeronly = true})
     set_homepage("https://github.com/herumi/xbyak")
-    set_description("A JIT assembler for x86(IA-32)/x64(AMD64, x86-64) MMX/SSE/SSE2/SSE3/SSSE3/SSE4/FPU/AVX/AVX2/AVX-512 by C++ header")
+    set_description("JIT assembler for x86(IA-32)/x64(AMD64, x86-64) MMX/SSE/SSE2/SSE3/SSSE3/SSE4/FPU/AVX/AVX2/AVX-512")
 
     set_urls("https://github.com/herumi/xbyak/archive/$(version).zip",
              "https://github.com/herumi/xbyak.git")
 
+    add_versions("v6.73", "8cb9cc090f6123b35a2c554ae4cc80c9a2fb65ebf0b378463094fc62360fb13d")
     add_versions("v6.03", "e13ec1247a3a34f602434cf5075f0dfeea42bbd9bc4a73fd59dcf3e44907e68a")
     add_versions("v6.02", "cd3fe5ee15df6bfa73c721584b101c885096551124e6ded31b6f866ecb381cf0")